Rent or buy · Westmount · 2026
The median rent of the past twelve months in Westmount, against the monthly cost of the median 2026 condo: mortgage with the minimum or 20% down, condo fees, interest and principal shares, and what the same rent would buy. Centris leases and sales, the rate actually charged, nothing estimated.
In Westmount, the median rent of the 152 leases signed on Centris from September 16, 2025 to September 16, 2026 is $2,900 a month (half between $2,360 and $3,800). Buying the median 2026 condo ($835,000, 151 sales) costs $5,336 a month with the minimum down payment ($58,500, 7.0%), the 5-year rate charged in 2026 (4.14%) and the median condo fees in Westmount ($1,027): $2,436 more than the rent, 184% of it. But $1,547 of that payment is principal repaid in the first year; the owner's sunk cost, interest and fees, is $3,789 a month, $889 more than the rent. With 20% down ($167,000), the monthly cost drops to $4,592 a month, still $1,692 above the rent. It is one of the places where renting wins by the most each month among the 50 units tracked (median gap $728). Sources: Centris, Bank of Canada, compiled October 8, 2026.
In Westmount, the median rent of the 152 leases signed on Centris from September 16, 2025 to September 16, 2026 is $2,900 a month (half between $2,360 and $3,800). Buying the median 2026 condo ($835,000, 151 sales) costs $5,336 a month with the minimum down payment ($58,500, 7.0%), the 5-year rate charged in 2026 (4.14%) and the median condo fees in Westmount ($1,027): $2,436 more than the rent, 184% of it. But $1,547 of that payment is principal repaid in the first year; the owner's sunk cost, interest and fees, is $3,789 a month, $889 more than the rent. With 20% down ($167,000), the monthly cost drops to $4,592 a month, still $1,692 above the rent. It is one of the places where renting wins by the most each month among the 50 units tracked (median gap $728).

| Measure in Westmount, 2026 | Per month | Detail |
|---|---|---|
| Median rent (12 months, 152 leases) | $2,900 | $2,360 to $3,800 |
| Median condo 2026 (151 sales) | $835,000 | minimum down payment $58,500 (7.0%), CMHC premium $31,060 |
| Mortgage, minimum down, 4.14%, 25 years | $4,309 | of which interest $2,762 and principal $1,547 in the first year |
| Median condo fees in Westmount | $1,027 | past 12 months of sales |
| Owner's monthly cost (minimum down) | $5,336 | +2436 $ versus rent (184%) |
| Owner's monthly cost (20% down, $167,000) | $4,592 | +1692 $ versus rent (158%) |
| Owner's sunk cost (interest + fees, minimum down) | $3,789 | +889 $ versus rent |
| Condo price ÷ annual rent | 24.0 | gross rental yield 4.2% |
| 2 bedrooms: median rent versus median 2-bedroom condo ($790,000) | $2,800 versus $5,112 | +2312 $ a month |
Rents: leases concluded on Centris in Westmount from September 16, 2025 to September 16, 2026, median. Prices: condos sold in Westmount, January to September 2026, median. Fees: median monthly condo fees of condos sold (Centris, 340). Mortgage: 2026 CMHC rules, 25 years, 5-year fixed rate charged 4.14% (Bank of Canada). Taxes, insurance, maintenance and opportunity cost excluded.

In Westmount, renting is clearly cheaper each month, even counting only the owner's interest and fees: the sunk cost exceeds the rent by $889. The condo price is worth 24.0 years of rent: at that level, buying is a bet on appreciation and on falling rates more than a cash-flow calculation. For a buyer, the discipline is not to stretch: a bigger down payment or a condo below the median brings the two columns together fast. For a seller, the pool of buyers is capped by the rent they pay today, and the asking price has to account for it. Rent by unit size is in average rent in Westmount; the detail of fees, in condo fees in Westmount.
The rent is the median of leases concluded on Centris in Westmount from September 16, 2025 to September 16, 2026, all unit types combined (152 leases); only units rented through a broker appear, which over-represents condos and recent buildings. The condo price is the median of condos sold in Westmount from January to September 2026. The payment assumes the minimum down payment under the 2026 rules (5% up to $500,000, 10% above), the CMHC premium added to the loan, a 25-year amortization and the average 5-year fixed rate banks actually charged in 2026 (4.14%, Bank of Canada), not the posted rate. Municipal and school taxes, insurance, maintenance and the opportunity cost of the down payment are not counted: they all fall on the owner, so the true gap is a little wider than the table.
$5,336 a month for the median condo of $835,000 with the minimum down ($58,500) and condo fees, against a median rent of $2,900: $2,436 more a month, of which $1,547 is principal repaid.
Yes, on both readings: $2,436 less in cash flow with the minimum down, and even counting only the owner's interest and fees, renting stays $889 cheaper a month. Buying in Westmount is justified by the holding period and appreciation, not by the monthly cost.
$58,500 at minimum (7.0% of the median condo), plus about 1.5% of the price in closing costs and the welcome tax. At 20% ($167,000), no CMHC premium and a payment of $3,565 a month. The detail by city is in down payment in Westmount.
Sources: Centris (Matrix), Rental module, leases concluded from September 16, 2025 to September 16, 2026 for Westmount, 152 leases, median and quartiles; Statistics module, median sale price of condos in 2026 and monthly condo fees of condos sold over twelve months; Bank of Canada and Statistics Canada (10-10-0006), 5-year fixed rate charged, January to July 2026 average; CMHC down payment rules and premiums in force in 2026; compiled by the Loaa & Manseur team, aggregates only. The rent or buy a condo in 50 cities and boroughs hub compares the 50 units.
The Loaa & Manseur team, led by Lotfi Manseur and Loaa Al Daow, is the number 1 team at RE/MAX Platine in 2024 and 2025, 6th RE/MAX team in Quebec, 15th in Canada and in the global top 50 of large residential teams according to the official RE/MAX ranking, computed on actual transactions. Its Google profile counts more than 220 reviews with a 4.9 rating. Its offices are at 55 avenue de l'Équinoxe in Brossard, one bridge from the island, and every broker's licence can be checked in the OACIQ public register. Three things to verify yourself before calling us, and to demand of any other broker.
Also available in French: version française de ce guide.
Published September 7, 2026 by the Loaa & Manseur team, the number 1 team at RE/MAX Platine in 2024 and 2025, 6th RE/MAX team in Quebec, 15th in Canada and in the global top 50 according to the official RE/MAX ranking. Tell us about your project.
Équipe no 1 de RE/MAX Platine en 2024 et en 2025, 6e au Québec, 15e au Canada et dans le top 50 mondial au classement officiel RE/MAX. Réponse en moins de 24 heures, sept jours sur sept.